sum-matrices.cc File Reference

#include "base/kaldi-common.h"
#include "util/common-utils.h"

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Functions
int	main (int argc, char *argv[])

Function Documentation

main()

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 24 of file sum-matrices.cc.

References ParseOptions::GetArg(), rnnlm::i, KALDI_LOG, ParseOptions::NumArgs(), MatrixBase< Real >::NumCols(), MatrixBase< Real >::NumRows(), ParseOptions::PrintUsage(), ParseOptions::Read(), Matrix< Real >::Read(), ParseOptions::Register(), and MatrixBase< Real >::Write().

                                 {
  using namespace kaldi;
  typedef kaldi::int32 int32;
  try {
    const char *usage =
        "Sum matrices, e.g. stats for fMPE training\n"
        "Usage:  sum-matrices [options] <mat-out> <mat-in1> <mat-in2> ...\n"
        "e.g.:\n"
        " sum-matrices mat 1.mat 2.mat 3.mat\n";

    ParseOptions po(usage);
    bool binary = true;

    po.Register("binary", &binary, "Write output in binary mode");
    po.Read(argc, argv);

    if (po.NumArgs() < 2) {
      po.PrintUsage();
      exit(1);
    }

    Matrix<BaseFloat> mat;

    for (int32 i = 2; i <= po.NumArgs(); i++) {
      bool binary_in;
      Input ki(po.GetArg(i), &binary_in);
      mat.Read(ki.Stream(), binary_in, true); // true == add.
      // This will crash if dimensions do not match.
    }

    Output ko(po.GetArg(1), binary);
    mat.Write(ko.Stream(), binary);

    KALDI_LOG << "Summed " << (po.NumArgs()-1) << " matrices "
              << " of dimension " << mat.NumRows() << " by " << mat.NumCols();
  } catch(const std::exception &e) {
    std::cerr << e.what();
    return -1;
  }
}